1 /* $NetBSD: clnt_bcast.c,v 1.3 2000/07/06 03:05:20 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2009, Sun Microsystems, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions are met: 9 * - Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * - Redistributions in binary form must reproduce the above copyright notice, 12 * this list of conditions and the following disclaimer in the documentation 13 * and/or other materials provided with the distribution. 14 * - Neither the name of Sun Microsystems, Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived 16 * from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 /* 31 * Copyright (c) 1986-1991 by Sun Microsystems Inc. 32 */ 33 34 #if defined(LIBC_SCCS) && !defined(lint) 35 #ident "@(#)clnt_bcast.c 1.18 94/05/03 SMI" 36 static char sccsid[] = "@(#)clnt_bcast.c 1.15 89/04/21 Copyr 1988 Sun Micro"; 37 #endif 38 #include <sys/cdefs.h> 39 __FBSDID("$FreeBSD$"); 40 41 42 /* 43 * clnt_bcast.c 44 * Client interface to broadcast service. 45 * 46 * Copyright (C) 1988, Sun Microsystems, Inc. 47 * 48 * The following is kludged-up support for simple rpc broadcasts. 49 * Someday a large, complicated system will replace these routines. 50 */ 51 52 #include "namespace.h" 53 #include <sys/types.h> 54 #include <sys/socket.h> 55 #include <sys/queue.h> 56 #include <net/if.h> 57 #include <netinet/in.h> 58 #include <ifaddrs.h> 59 #include <sys/poll.h> 60 #include <rpc/rpc.h> 61 #ifdef PORTMAP 62 #include <rpc/pmap_prot.h> 63 #include <rpc/pmap_clnt.h> 64 #include <rpc/pmap_rmt.h> 65 #endif /* PORTMAP */ 66 #include <rpc/nettype.h> 67 #include <arpa/inet.h> 68 #ifdef RPC_DEBUG 69 #include <stdio.h> 70 #endif 71 #include <errno.h> 72 #include <stdlib.h> 73 #include <unistd.h> 74 #include <netdb.h> 75 #include <err.h> 76 #include <string.h> 77 #include "un-namespace.h" 78 79 #include "rpc_com.h" 80 81 #define MAXBCAST 20 /* Max no of broadcasting transports */ 82 #define INITTIME 4000 /* Time to wait initially */ 83 #define WAITTIME 8000 /* Maximum time to wait */ 84 85 /* 86 * If nettype is NULL, it broadcasts on all the available 87 * datagram_n transports. May potentially lead to broadacst storms 88 * and hence should be used with caution, care and courage. 89 * 90 * The current parameter xdr packet size is limited by the max tsdu 91 * size of the transport. If the max tsdu size of any transport is 92 * smaller than the parameter xdr packet, then broadcast is not 93 * sent on that transport. 94 * 95 * Also, the packet size should be less the packet size of 96 * the data link layer (for ethernet it is 1400 bytes). There is 97 * no easy way to find out the max size of the data link layer and 98 * we are assuming that the args would be smaller than that. 99 * 100 * The result size has to be smaller than the transport tsdu size. 101 * 102 * If PORTMAP has been defined, we send two packets for UDP, one for 103 * rpcbind and one for portmap. For those machines which support 104 * both rpcbind and portmap, it will cause them to reply twice, and 105 * also here it will get two responses ... inefficient and clumsy. 106 */ 107 108 struct broadif { 109 int index; 110 struct sockaddr_storage broadaddr; 111 TAILQ_ENTRY(broadif) link; 112 }; 113 114 typedef TAILQ_HEAD(, broadif) broadlist_t; 115 116 int __rpc_getbroadifs(int, int, int, broadlist_t *); 117 void __rpc_freebroadifs(broadlist_t *); 118 int __rpc_broadenable(int, int, struct broadif *); 119 120 int __rpc_lowvers = 0; 121 122 int 123 __rpc_getbroadifs(int af, int proto, int socktype, broadlist_t *list) 124 { 125 int count = 0; 126 struct broadif *bip; 127 struct ifaddrs *ifap, *ifp; 128 #ifdef INET6 129 struct sockaddr_in6 *sin6; 130 #endif 131 struct sockaddr_in *sin; 132 struct addrinfo hints, *res; 133 134 if (getifaddrs(&ifp) < 0) 135 return 0; 136 137 memset(&hints, 0, sizeof hints); 138 139 hints.ai_family = af; 140 hints.ai_protocol = proto; 141 hints.ai_socktype = socktype; 142 143 if (getaddrinfo(NULL, "sunrpc", &hints, &res) != 0) { 144 freeifaddrs(ifp); 145 return 0; 146 } 147 148 for (ifap = ifp; ifap != NULL; ifap = ifap->ifa_next) { 149 if (ifap->ifa_addr->sa_family != af || 150 !(ifap->ifa_flags & IFF_UP)) 151 continue; 152 bip = (struct broadif *)malloc(sizeof *bip); 153 if (bip == NULL) 154 break; 155 bip->index = if_nametoindex(ifap->ifa_name); 156 if ( 157 #ifdef INET6 158 af != AF_INET6 && 159 #endif 160 (ifap->ifa_flags & IFF_BROADCAST) && 161 ifap->ifa_broadaddr) { 162 memcpy(&bip->broadaddr, ifap->ifa_broadaddr, 163 (size_t)ifap->ifa_broadaddr->sa_len); 164 sin = (struct sockaddr_in *)(void *)&bip->broadaddr; 165 sin->sin_port = 166 ((struct sockaddr_in *) 167 (void *)res->ai_addr)->sin_port; 168 } else 169 #ifdef INET6 170 if (af == AF_INET6 && (ifap->ifa_flags & IFF_MULTICAST)) { 171 sin6 = (struct sockaddr_in6 *)(void *)&bip->broadaddr; 172 inet_pton(af, RPCB_MULTICAST_ADDR, &sin6->sin6_addr); 173 sin6->sin6_family = af; 174 sin6->sin6_len = sizeof *sin6; 175 sin6->sin6_port = 176 ((struct sockaddr_in6 *) 177 (void *)res->ai_addr)->sin6_port; 178 sin6->sin6_scope_id = bip->index; 179 } else 180 #endif 181 { 182 free(bip); 183 continue; 184 } 185 TAILQ_INSERT_TAIL(list, bip, link); 186 count++; 187 } 188 freeifaddrs(ifp); 189 freeaddrinfo(res); 190 191 return count; 192 } 193 194 void 195 __rpc_freebroadifs(broadlist_t *list) 196 { 197 struct broadif *bip, *next; 198 199 bip = TAILQ_FIRST(list); 200 201 while (bip != NULL) { 202 next = TAILQ_NEXT(bip, link); 203 free(bip); 204 bip = next; 205 } 206 } 207 208 int 209 /*ARGSUSED*/ 210 __rpc_broadenable(int af, int s, struct broadif *bip) 211 { 212 int o = 1; 213 214 #if 0 215 if (af == AF_INET6) { 216 fprintf(stderr, "set v6 multicast if to %d\n", bip->index); 217 if (_setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_IF, &bip->index, 218 sizeof bip->index) < 0) 219 return -1; 220 } else 221 #endif 222 if (_setsockopt(s, SOL_SOCKET, SO_BROADCAST, &o, sizeof o) < 0) 223 return -1; 224 225 return 0; 226 } 227 228 /* 229 * rpc_broadcast_exp() 230 * 231 * prog - program number 232 * vers - version number 233 * proc - procedure number 234 * xargs - xdr routine for args 235 * argsp - pointer to args 236 * xresults - xdr routine for results 237 * resultsp - pointer to results 238 * eachresult - call with each result obtained 239 * inittime - how long to wait initially 240 * waittime - maximum time to wait 241 * nettype - transport type 242 */ 243 enum clnt_stat 244 rpc_broadcast_exp(rpcprog_t prog, rpcvers_t vers, rpcproc_t proc, 245 xdrproc_t xargs, caddr_t argsp, xdrproc_t xresults, caddr_t resultsp, 246 resultproc_t eachresult, int inittime, int waittime, 247 const char *nettype) 248 { 249 enum clnt_stat stat = RPC_SUCCESS; /* Return status */ 250 XDR xdr_stream; /* XDR stream */ 251 XDR *xdrs = &xdr_stream; 252 struct rpc_msg msg; /* RPC message */ 253 struct timeval t; 254 char *outbuf = NULL; /* Broadcast msg buffer */ 255 char *inbuf = NULL; /* Reply buf */ 256 int inlen; 257 u_int maxbufsize = 0; 258 AUTH *sys_auth = authunix_create_default(); 259 u_int i; 260 void *handle; 261 char uaddress[1024]; /* A self imposed limit */ 262 char *uaddrp = uaddress; 263 int pmap_reply_flag; /* reply recvd from PORTMAP */ 264 /* An array of all the suitable broadcast transports */ 265 struct { 266 int fd; /* File descriptor */ 267 int af; 268 int proto; 269 struct netconfig *nconf; /* Netconfig structure */ 270 u_int asize; /* Size of the addr buf */ 271 u_int dsize; /* Size of the data buf */ 272 struct sockaddr_storage raddr; /* Remote address */ 273 broadlist_t nal; 274 } fdlist[MAXBCAST]; 275 struct pollfd pfd[MAXBCAST]; 276 size_t fdlistno = 0; 277 struct r_rpcb_rmtcallargs barg; /* Remote arguments */ 278 struct r_rpcb_rmtcallres bres; /* Remote results */ 279 size_t outlen; 280 struct netconfig *nconf; 281 int msec; 282 int pollretval; 283 int fds_found; 284 285 #ifdef PORTMAP 286 size_t outlen_pmap = 0; 287 u_long port; /* Remote port number */ 288 int pmap_flag = 0; /* UDP exists ? */ 289 char *outbuf_pmap = NULL; 290 struct rmtcallargs barg_pmap; /* Remote arguments */ 291 struct rmtcallres bres_pmap; /* Remote results */ 292 u_int udpbufsz = 0; 293 #endif /* PORTMAP */ 294 295 if (sys_auth == NULL) { 296 return (RPC_SYSTEMERROR); 297 } 298 /* 299 * initialization: create a fd, a broadcast address, and send the 300 * request on the broadcast transport. 301 * Listen on all of them and on replies, call the user supplied 302 * function. 303 */ 304 305 if (nettype == NULL) 306 nettype = "datagram_n"; 307 if ((handle = __rpc_setconf(nettype)) == NULL) { 308 AUTH_DESTROY(sys_auth); 309 return (RPC_UNKNOWNPROTO); 310 } 311 while ((nconf = __rpc_getconf(handle)) != NULL) { 312 int fd; 313 struct __rpc_sockinfo si; 314 315 if (nconf->nc_semantics != NC_TPI_CLTS) 316 continue; 317 if (fdlistno >= MAXBCAST) 318 break; /* No more slots available */ 319 if (!__rpc_nconf2sockinfo(nconf, &si)) 320 continue; 321 322 TAILQ_INIT(&fdlist[fdlistno].nal); 323 if (__rpc_getbroadifs(si.si_af, si.si_proto, si.si_socktype, 324 &fdlist[fdlistno].nal) == 0) 325 continue; 326 327 fd = _socket(si.si_af, si.si_socktype, si.si_proto); 328 if (fd < 0) { 329 stat = RPC_CANTSEND; 330 continue; 331 } 332 fdlist[fdlistno].af = si.si_af; 333 fdlist[fdlistno].proto = si.si_proto; 334 fdlist[fdlistno].fd = fd; 335 fdlist[fdlistno].nconf = nconf; 336 fdlist[fdlistno].asize = __rpc_get_a_size(si.si_af); 337 pfd[fdlistno].events = POLLIN | POLLPRI | 338 POLLRDNORM | POLLRDBAND; 339 pfd[fdlistno].fd = fdlist[fdlistno].fd = fd; 340 fdlist[fdlistno].dsize = __rpc_get_t_size(si.si_af, si.si_proto, 341 0); 342 343 if (maxbufsize <= fdlist[fdlistno].dsize) 344 maxbufsize = fdlist[fdlistno].dsize; 345 346 #ifdef PORTMAP 347 if (si.si_af == AF_INET && si.si_proto == IPPROTO_UDP) { 348 udpbufsz = fdlist[fdlistno].dsize; 349 if ((outbuf_pmap = malloc(udpbufsz)) == NULL) { 350 _close(fd); 351 stat = RPC_SYSTEMERROR; 352 goto done_broad; 353 } 354 pmap_flag = 1; 355 } 356 #endif /* PORTMAP */ 357 fdlistno++; 358 } 359 360 if (fdlistno == 0) { 361 if (stat == RPC_SUCCESS) 362 stat = RPC_UNKNOWNPROTO; 363 goto done_broad; 364 } 365 if (maxbufsize == 0) { 366 if (stat == RPC_SUCCESS) 367 stat = RPC_CANTSEND; 368 goto done_broad; 369 } 370 inbuf = malloc(maxbufsize); 371 outbuf = malloc(maxbufsize); 372 if ((inbuf == NULL) || (outbuf == NULL)) { 373 stat = RPC_SYSTEMERROR; 374 goto done_broad; 375 } 376 377 /* Serialize all the arguments which have to be sent */ 378 (void) gettimeofday(&t, NULL); 379 msg.rm_xid = __RPC_GETXID(&t); 380 msg.rm_direction = CALL; 381 msg.rm_call.cb_rpcvers = RPC_MSG_VERSION; 382 msg.rm_call.cb_prog = RPCBPROG; 383 msg.rm_call.cb_vers = RPCBVERS; 384 msg.rm_call.cb_proc = RPCBPROC_CALLIT; 385 barg.prog = prog; 386 barg.vers = vers; 387 barg.proc = proc; 388 barg.args.args_val = argsp; 389 barg.xdr_args = xargs; 390 bres.addr = uaddrp; 391 bres.results.results_val = resultsp; 392 bres.xdr_res = xresults; 393 msg.rm_call.cb_cred = sys_auth->ah_cred; 394 msg.rm_call.cb_verf = sys_auth->ah_verf; 395 xdrmem_create(xdrs, outbuf, maxbufsize, XDR_ENCODE); 396 if ((!xdr_callmsg(xdrs, &msg)) || 397 (!xdr_rpcb_rmtcallargs(xdrs, 398 (struct rpcb_rmtcallargs *)(void *)&barg))) { 399 stat = RPC_CANTENCODEARGS; 400 goto done_broad; 401 } 402 outlen = xdr_getpos(xdrs); 403 xdr_destroy(xdrs); 404 405 #ifdef PORTMAP 406 /* Prepare the packet for version 2 PORTMAP */ 407 if (pmap_flag) { 408 msg.rm_xid++; /* One way to distinguish */ 409 msg.rm_call.cb_prog = PMAPPROG; 410 msg.rm_call.cb_vers = PMAPVERS; 411 msg.rm_call.cb_proc = PMAPPROC_CALLIT; 412 barg_pmap.prog = prog; 413 barg_pmap.vers = vers; 414 barg_pmap.proc = proc; 415 barg_pmap.args_ptr = argsp; 416 barg_pmap.xdr_args = xargs; 417 bres_pmap.port_ptr = &port; 418 bres_pmap.xdr_results = xresults; 419 bres_pmap.results_ptr = resultsp; 420 xdrmem_create(xdrs, outbuf_pmap, udpbufsz, XDR_ENCODE); 421 if ((! xdr_callmsg(xdrs, &msg)) || 422 (! xdr_rmtcall_args(xdrs, &barg_pmap))) { 423 stat = RPC_CANTENCODEARGS; 424 goto done_broad; 425 } 426 outlen_pmap = xdr_getpos(xdrs); 427 xdr_destroy(xdrs); 428 } 429 #endif /* PORTMAP */ 430 431 /* 432 * Basic loop: broadcast the packets to transports which 433 * support data packets of size such that one can encode 434 * all the arguments. 435 * Wait a while for response(s). 436 * The response timeout grows larger per iteration. 437 */ 438 for (msec = inittime; msec <= waittime; msec += msec) { 439 struct broadif *bip; 440 441 /* Broadcast all the packets now */ 442 for (i = 0; i < fdlistno; i++) { 443 if (fdlist[i].dsize < outlen) { 444 stat = RPC_CANTSEND; 445 continue; 446 } 447 for (bip = TAILQ_FIRST(&fdlist[i].nal); bip != NULL; 448 bip = TAILQ_NEXT(bip, link)) { 449 void *addr; 450 451 addr = &bip->broadaddr; 452 453 __rpc_broadenable(fdlist[i].af, fdlist[i].fd, 454 bip); 455 456 /* 457 * Only use version 3 if lowvers is not set 458 */ 459 460 if (!__rpc_lowvers) 461 if (_sendto(fdlist[i].fd, outbuf, 462 outlen, 0, (struct sockaddr*)addr, 463 (size_t)fdlist[i].asize) != 464 outlen) { 465 #ifdef RPC_DEBUG 466 perror("sendto"); 467 #endif 468 warnx("clnt_bcast: cannot send " 469 "broadcast packet"); 470 stat = RPC_CANTSEND; 471 continue; 472 }; 473 #ifdef RPC_DEBUG 474 if (!__rpc_lowvers) 475 fprintf(stderr, "Broadcast packet sent " 476 "for %s\n", 477 fdlist[i].nconf->nc_netid); 478 #endif 479 #ifdef PORTMAP 480 /* 481 * Send the version 2 packet also 482 * for UDP/IP 483 */ 484 if (pmap_flag && 485 fdlist[i].proto == IPPROTO_UDP) { 486 if (_sendto(fdlist[i].fd, outbuf_pmap, 487 outlen_pmap, 0, addr, 488 (size_t)fdlist[i].asize) != 489 outlen_pmap) { 490 warnx("clnt_bcast: " 491 "Cannot send broadcast packet"); 492 stat = RPC_CANTSEND; 493 continue; 494 } 495 } 496 #ifdef RPC_DEBUG 497 fprintf(stderr, "PMAP Broadcast packet " 498 "sent for %s\n", 499 fdlist[i].nconf->nc_netid); 500 #endif 501 #endif /* PORTMAP */ 502 } 503 /* End for sending all packets on this transport */ 504 } /* End for sending on all transports */ 505 506 if (eachresult == NULL) { 507 stat = RPC_SUCCESS; 508 goto done_broad; 509 } 510 511 /* 512 * Get all the replies from these broadcast requests 513 */ 514 recv_again: 515 516 switch (pollretval = _poll(pfd, fdlistno, msec)) { 517 case 0: /* timed out */ 518 stat = RPC_TIMEDOUT; 519 continue; 520 case -1: /* some kind of error - we ignore it */ 521 goto recv_again; 522 } /* end of poll results switch */ 523 524 for (i = fds_found = 0; 525 i < fdlistno && fds_found < pollretval; i++) { 526 bool_t done = FALSE; 527 528 if (pfd[i].revents == 0) 529 continue; 530 else if (pfd[i].revents & POLLNVAL) { 531 /* 532 * Something bad has happened to this descri- 533 * ptor. We can cause _poll() to ignore 534 * it simply by using a negative fd. We do that 535 * rather than compacting the pfd[] and fdlist[] 536 * arrays. 537 */ 538 pfd[i].fd = -1; 539 fds_found++; 540 continue; 541 } else 542 fds_found++; 543 #ifdef RPC_DEBUG 544 fprintf(stderr, "response for %s\n", 545 fdlist[i].nconf->nc_netid); 546 #endif 547 try_again: 548 inlen = _recvfrom(fdlist[i].fd, inbuf, fdlist[i].dsize, 549 0, (struct sockaddr *)(void *)&fdlist[i].raddr, 550 &fdlist[i].asize); 551 if (inlen < 0) { 552 if (errno == EINTR) 553 goto try_again; 554 warnx("clnt_bcast: Cannot receive reply to " 555 "broadcast"); 556 stat = RPC_CANTRECV; 557 continue; 558 } 559 if (inlen < sizeof (u_int32_t)) 560 continue; /* Drop that and go ahead */ 561 /* 562 * see if reply transaction id matches sent id. 563 * If so, decode the results. If return id is xid + 1 564 * it was a PORTMAP reply 565 */ 566 if (*((u_int32_t *)(void *)(inbuf)) == 567 *((u_int32_t *)(void *)(outbuf))) { 568 pmap_reply_flag = 0; 569 msg.acpted_rply.ar_verf = _null_auth; 570 msg.acpted_rply.ar_results.where = 571 (caddr_t)(void *)&bres; 572 msg.acpted_rply.ar_results.proc = 573 (xdrproc_t)xdr_rpcb_rmtcallres; 574 #ifdef PORTMAP 575 } else if (pmap_flag && 576 *((u_int32_t *)(void *)(inbuf)) == 577 *((u_int32_t *)(void *)(outbuf_pmap))) { 578 pmap_reply_flag = 1; 579 msg.acpted_rply.ar_verf = _null_auth; 580 msg.acpted_rply.ar_results.where = 581 (caddr_t)(void *)&bres_pmap; 582 msg.acpted_rply.ar_results.proc = 583 (xdrproc_t)xdr_rmtcallres; 584 #endif /* PORTMAP */ 585 } else 586 continue; 587 xdrmem_create(xdrs, inbuf, (u_int)inlen, XDR_DECODE); 588 if (xdr_replymsg(xdrs, &msg)) { 589 if ((msg.rm_reply.rp_stat == MSG_ACCEPTED) && 590 (msg.acpted_rply.ar_stat == SUCCESS)) { 591 struct netbuf taddr, *np; 592 struct sockaddr_in *sin; 593 594 #ifdef PORTMAP 595 if (pmap_flag && pmap_reply_flag) { 596 sin = (struct sockaddr_in *) 597 (void *)&fdlist[i].raddr; 598 sin->sin_port = 599 htons((u_short)port); 600 taddr.len = taddr.maxlen = 601 fdlist[i].raddr.ss_len; 602 taddr.buf = &fdlist[i].raddr; 603 done = (*eachresult)(resultsp, 604 &taddr, fdlist[i].nconf); 605 } else { 606 #endif /* PORTMAP */ 607 #ifdef RPC_DEBUG 608 fprintf(stderr, "uaddr %s\n", 609 uaddrp); 610 #endif 611 np = uaddr2taddr( 612 fdlist[i].nconf, uaddrp); 613 done = (*eachresult)(resultsp, 614 np, fdlist[i].nconf); 615 free(np); 616 #ifdef PORTMAP 617 } 618 #endif /* PORTMAP */ 619 } 620 /* otherwise, we just ignore the errors ... */ 621 } 622 /* else some kind of deserialization problem ... */ 623 624 xdrs->x_op = XDR_FREE; 625 msg.acpted_rply.ar_results.proc = (xdrproc_t) xdr_void; 626 (void) xdr_replymsg(xdrs, &msg); 627 (void) (*xresults)(xdrs, resultsp); 628 XDR_DESTROY(xdrs); 629 if (done) { 630 stat = RPC_SUCCESS; 631 goto done_broad; 632 } else { 633 goto recv_again; 634 } 635 } /* The recv for loop */ 636 } /* The giant for loop */ 637 638 done_broad: 639 if (inbuf) 640 (void) free(inbuf); 641 if (outbuf) 642 (void) free(outbuf); 643 #ifdef PORTMAP 644 if (outbuf_pmap) 645 (void) free(outbuf_pmap); 646 #endif /* PORTMAP */ 647 for (i = 0; i < fdlistno; i++) { 648 (void)_close(fdlist[i].fd); 649 __rpc_freebroadifs(&fdlist[i].nal); 650 } 651 AUTH_DESTROY(sys_auth); 652 (void) __rpc_endconf(handle); 653 654 return (stat); 655 } 656 657 /* 658 * rpc_broadcast() 659 * 660 * prog - program number 661 * vers - version number 662 * proc - procedure number 663 * xargs - xdr routine for args 664 * argsp - pointer to args 665 * xresults - xdr routine for results 666 * resultsp - pointer to results 667 * eachresult - call with each result obtained 668 * nettype - transport type 669 */ 670 enum clnt_stat 671 rpc_broadcast(rpcprog_t prog, rpcvers_t vers, rpcproc_t proc, xdrproc_t xargs, 672 caddr_t argsp, xdrproc_t xresults, caddr_t resultsp, 673 resultproc_t eachresult, const char *nettype) 674 { 675 enum clnt_stat dummy; 676 677 dummy = rpc_broadcast_exp(prog, vers, proc, xargs, argsp, 678 xresults, resultsp, eachresult, 679 INITTIME, WAITTIME, nettype); 680 return (dummy); 681 } 682